Electrical and electronic equipment is designed to operate on a standard supply voltage. In certain environments the source power may not be at the standard rating for a variety of reasons. When there is variation in the standard supply voltage a Buck-Boost Transformer can be used as a simple and economical means of correcting deviations up to +/- 20%. When the supply voltage is constantly too high or too low, (usually greater than +/- 5%), the equipment may fail to operate at maximum efficiency. A Buck-Boost Transformer has four separate windings, two windings in the primary and two windings in the secondary. The unit is designed for use as an isolating transformer or as an auto-transformer. As an autotransformer the unit can be connected to buck (decrease) or boost (increase) a supply voltage. Autotransformers are more economical and physically smaller than equivalent two-winding transformers designed to carry the same load. They will perform the same function as two-winding transformers with the exception of isolating two circuits. Since autotransformers may transmit line disturbances directly, they may be prohibited in some areas by local building codes, before applying them, consult local codes. A Buck-Boost Transformer will not stabilize a fluctuating voltage.

FEDERAL PACIFIC™ Buck-Boost Transformer, Type AA Dry General Purpose Non-Ventilated, 120 x 240 VAC Primary, 12/24 V Secondary, 0.1 kVA Power, 60 Hz Frequency, 1 ph, 8.3 A at 12 V Maximum, Wire Lead Connection, Wall Mounting, 180 deg C Insulation, NEMA 3R Enclosure, 115 deg C, Steel Housing Material, 3-1/4 in W x 4-1/4 in D x 8-1/4 in H Dimensions

• Catalog https://assets.unilogcorp.com/30/ITEM/DOC/Federal_Pacific_K1XGF1201_Catalog.pdf
• Specification Sheet https://assets.unilogcorp.com/30/ITEM/DOC/Federal_Pacific_K1XGF1201_Specification_Sheet.pdf